Radial drill-press.



M. HIMOFP.

RADIAL DRILL PRESS.

APPLICATION FILED SEPT. 21, 1910.

Patented July 16, 1912.

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MAX HIIVIOFF, OF NEW YORK, N. Y.

RADIAL DRILL-PRESS.

Original application filed July 22, 1909, Serial No. 508,911.

Specification of Letters Patent.

Patented July 16, 1912.

Divided and this application filed September 21, 1910. Serial No. 582,962.

To all whom it may concern:

Be it known that I, MAX HrMorr, a citizen of the United States, and resident of New York city, borough of Wanhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Radial Drill-Presses, of which the following is a specification.

This application is a division of my application filed July 22, 1909, Serial No. 508,911, for radial drill presses.

The object of my present invention is to provide strong and efficient means for supporting and operating drills to enable radial and circular adjustment of the drills.

My invention comprises novel details of improvement and combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings forming part hereof, wherein,

Figure 1 is a side view of a drill press embodying my improvements; Fig. 2 is a section on the plane of the line 2, 2, in Fig. 1, and Fig. 3 is a section on the line 3, 3, in Fig. 1.

Similar numerals of reference indicate corresponding parts in the several views.

The numeral 1 indicates a suitable base which may be provided with a table for the work adapted to be raised and lowered and held in set position in any wellknown manner. Upon base 1 is supported any suitable number of columns 3 upon which drills and their immediate operating devices are supported. Columns 3 are supported for rotary adjustment in brackets 1 of base 1 and are held in set position by clamping jaws 1 and screws 1. By this means columns 3 are firmly and strongly supported and guided and may be readily rotated for adjustment. The columns 3 support the drill holding and adjusting devices, for which purpose I provide an arm or block 10 for each column carried by suitable guiding means such as dovetailed ways 10 on the columns. The arms 10 are horizontally disposed and so placed relatively to the axes of columns 3 that said arms may have adjustment radially with respect to said 001- umns, that is to say the vertical centers of arms 10 aline with the axes of columns 3, As a convenient means for accomplishing this columns 3 are shown offset at 3 there by being provided with recesses 11 transversely disposed in which the arms 10 are mounted and slide. Set screws 13 carried by columns 3 serve to lock arms 10 in adjusted positions. Arm 10 at its forward end has suitable bearings for the drill spindle 14 which revolves in the usual rack member 15 with which rack the gear 16 meshes, the shaft 17 of said gear being journaled upon arm 10 and having means at its ends to permit its operation for raising and low ering the drill in a wellknown manner. The particular means shown for rotating the spindle 14 comprises a gear 14 connected with spindle 14 in usual manner, and meshing with gear 14 carried by spindle 14 supported by arm 10 in any wellknown manner. To permit proper rotation of spindle 14 during different positions of adjustment of arm 14 I have shown telescopic shaft 26 and universal joints 28, 28 connecting spindle 14 with spindle 27 that is j ournalcd in a suitable bearing 29 carried by column 1. A pulley 31 on spindle 27 receives belt 32 from drive pulley 36, belt 32 passing over idlers 33*. There will be one such set of driving mechanism for each drill spindle.

Column 3 may be adjusted rotatively to the desired position and so held, and the corresponding arm 10 may be adjusted in a di rection radially with respect to the axis of the column, and thus radially with respect to the drill held by chuck A, and held in such position, the telescopic shaft 26 per mitting such adjustments and one or more of the drills may be rotated as required. By this means two drills maybe adjusted so as to come quite close to each other, or may be set at various distances apart relatively to each other, according to the work to be done, and thus a large radius of drill operation may be effected. This is permitted by the position of the drill spindles 14 ad j acent the outer ends of arms 10.

Changes may be made in the details of construction and arrangements set forth, within the scope of the appended claims, without departing from the spirit of my invention.

Having now described my invention what I claim is:

1. A drill press comprising a base, spaced columns rotatively supported by the base, the base having clamps to hold the columns respectively in set positions, an arm adjustably carried by each column and passing through the axis thereof for radial adjustand columns, means to hold the arms in set ment, and drill operating devices carried by position on the columns, and drill operatthe arms at points outside of the columns. ing devices carried by the arms.

2. A drill press comprising a base, spaced Signed at New York city, in the county 15 5 brackets carried by the base, columns roof New York and State of New York this tativ-ely supported by said brackets respec- 20th day of September, A. D. 1910.

tively, said brackets having clamps to hold the columns in set positions on said brackets, MAX HIMOFF' transversely disposed arms carried by the Witnesses:

10 columns and projecting through the axes HERMAN HERs'r, Jr.,

thereof, guiding means between the arms T. F. BOU'RNE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.' 

